Revert of https://github.com/odoo/odoo/commit/a95af8b78a94a795e05a0adf299837adc0ef2117 and
https://github.com/odoo/odoo/commit/f4f9ecb3e4801b3d382abc24c478fe5e533c9bf8

**Steps to reproduce**
1. Remove the company of the Working Schedule (needs to be done in
a multi-company environment from the UI) used by an employee.
2. Using the company of this employee, create a Public Holiday
(for the employee's schedule or all schedules).

Issues:
- the public holiday doesn't appear in the Time Off dashboard
- when taking a time off on that day, the public holiday is
included in the duration

**Cause**
After the fix in https://github.com/odoo/odoo/commit/a95af8b78a94a795e05a0adf299837adc0ef2117 , it will lead
to a search domain for public holidays of `('company_id', 'in', [False])`
when the working schedule has no company, ignoring any public
holidays with a company set. This is especially problematic since the
company of the public holiday is always forced.
https://github.com/odoo/odoo/blob/7bce5f3f95429a4d4ba034a66c350ee2a5868567/addons/resource/models/resource_calendar_leaves.py#L49-L51

**Solution**
Since the intent of the original fix https://github.com/odoo/odoo/commit/f4f9ecb3e4801b3d382abc24c478fe5e533c9bf8
was to correct an issue related to the computation of some `project.task`
fields calling a resource method (`get_work_duration_data`), we can revert
the fix and later fix the original issue directly in `project`, without
impacting `hr`/`resource` modules.

opw-5496999
opw-5401425

Forward-Port-Of: odoo/odoo#244052

_______________________________________
## Short functional explanation of the error
Let's say we have a products that has 2 suppliers. In the list of suppliers, the first one set has an expired date. If we generate a PO from an SO with the MTO route, the assigned supplier for this product will be the first one set in the list, therefore having an expired date.

## Reproduction Steps
1. Go to Inventory > Configuration > settings. Check the option Multi-Step routes.
2. Click on Configuration > routes and unarchive the Replenish On Order (MTO) route.
3. Create or use an already existing product. Go to the Inventory tab, and under Operations, check the routes Replenish on Order (MTO) and Buy.
4. Click on the Purchase tab. There, set a first vendor for which the end date is earlier than today. For the second one, set an end date for which the date is later than today.
5. Go to Sales and create a new quotation. Set a customer and add a line with the product you just set. Click confirm. A smart button 'Purchase' should appear. Click on it.

### Expected behavior
The assigned vendor of the PO should be the second vendor as it isn't expired yet.

### Unexpected behavior
The assigned vendor is the first vendor, expired.

## Origin of the issue
When generating a PO from an SO, the partner is the person ordering the product, not the vendor. Therefore, when this code is executed:

https://github.com/odoo/odoo/blob/6b677319c47baacb5bee829b7e41448dec4136eb/addons/purchase_stock/models/stock_rule.py#L62-L66

no corresponding supplier is found, as
```self._get_partner_id(procurement.values, rule)``` returns the customer
and not the vendor. This leads us to the fallback:
https://github.com/odoo/odoo/blob/6b677319c47baacb5bee829b7e41448dec4136eb/addons/purchase_stock/models/stock_rule.py#L68-L72
which doesn't take into account the end date of vendors.

__
opw-5030849

Description of the issue/feature this PR addresses:

Current behavior before PR:

Desired behavior after PR is merged:




---
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Forward-Port-Of: odoo/odoo#245313
Forward-Port-Of: odoo/odoo#225684

Description of the issue/feature this PR addresses:

Fixes timer not showing to participants of a live session after submitting an answer.

Current behavior before PR:

Steps to reproduce:

Create a Survey with two questions of any type.
Set some Question Time Limit on both.
Create Live Session for that Survey.
Access Live Session as a participant.
Start Survey as the host.
The first question appears to the participant, with the timer on the top right. Answer the question as the participant and click Submit or press Enter. On the host side move to the next question.
Bug: timer for the second question does not appear to the participant.

Desired behavior after PR is merged:

Fix:
The logic to hide the timer is on `survey_form.js`. In the `_nextScreen` function.
Specifically, when `options.isFinish` is set to `true`. It is set to `true` in the `_onSubmit` function.
This function triggers when the participant submits an answer. The fix: only set that flag to `true` if there isn't a session in progress. This aligns with the other calls to `_nextScreen` for live sessions. That is, when a timer expires and the form is submitted: `'isFinish': !this.options.sessionInProgress`
and when a notification is received for the session: `isFinish: nextPageEvent.type === 'end_session'`
Meaning that for live sessions the only time `isFinish` should be set to `true`, is when the `end_session` notification is received.

---
I confirm I have signed the CLA and read the PR guidelines at www.odoo.com/submit-pr

Forward-Port-Of: odoo/odoo#246147
Forward-Port-Of: odoo/odoo#241086